kdl/CHANGELOG.md

KDL Changelog

2.0.0 (2022-08-28)

Grammar

• Solidus/Forward slash (/) is no longer an escaped character.
• Single line comments (//) can now be immediately followed by a newline.
• All literal whitespace following a \ in a string is now discarded.
• Vertical tabs (U+000B) are now considered to be whitespace.
• Identifiers can't start with r#, so they're easy to distinguish from raw strings. (They already similarly can't start with a digit, or a sign+digit, so they're easy to distinguish from numbers.)
• The grammar syntax itself has been described, and some confusing definitions in the grammar have been fixed accordingly (mostly related to escaped characters).

KQL

• There's now a required descendant selector (>>), instead of using plain spaces for that purpose.
• The "any sibling" selector is now ++ instead of ~, for consistency with the new descendant selector.
• Map operators have been removed entirely.